Eroare de compilare: user.cpp: In function ‘void viz(int, bool)’: user.cpp:11:27: error: invalid use of member function (did you forget the ‘()’ ?) for(int i=1;i<=a[nod].size;i++){ ^ user.cpp: In function ‘int main()’: user.cpp:29:14: error: ‘class std::vector<int>’ has no member named ‘pushback’ a[x].pushback(y); ^ user.cpp:30:14: error: ‘class std::vector<int>’ has no member named ‘pushback’ a[y].pushback(x); ^